DMR Fails after 20191016 Update
Posted: Mon Oct 21, 2019 5:00 am
I have built about 20 mmdvm repeaters and at one time or another they have or are running Pi-Star. I presently have 6 mmdvm repeaters on the air. The one in question at the moment is at our second home 1800 miles away from home which I am visiting for the next couple days.
The repeater was made from a pair of UHF CDM1550LS+ radios, RPi 2B and a ZUM Radio ver 1.01 MODEM USB, DUE it has worked flawlessly for over a year. To standardize equipment to allow a buddy to service the repeater if necessary I swapped out a working, preconfigured RPi 3B, ZUM radio ver 0.9 MODEM HAT and it did not work. In the process Pi-Star updated to 20191016 which I did not notice at first. I took a backup older version from 10 months ago and burned the SDCard and it worked which was version 3.4.16. Next I created a new SDCard from scratch using V4.1.0-RC4 and it worked fine with the July update. I ran the update... BOOM it stopped working.
Now not working means that the portable does not hand shake with the repeater. My Motorola SL300 never works in the failed mode but my CS750 does sometimes. However, often requiring a second or third PTT to pass traffic even though every time you get the talk permit tone. It does not matter which version old or new, after the update of the RPi I see this issue.
I will only be here for a couple more days. How can I either roll back or stop the updates until the problem can be resolved? I will be another year before I visit his site again but I do have a VPN and ssh access when not on site. Rebuilding another card remotely is not possible. This weekend when I return home I will have to see what has happened to the 5 mmdvm repeaters. I only run DMR no other modes are enabled.
What can I do?
73
Jon
K1IMD
PS - One more Hint - The Motorola SL300 does not decode audio in the failed mode but the CS750 seems too.
The repeater was made from a pair of UHF CDM1550LS+ radios, RPi 2B and a ZUM Radio ver 1.01 MODEM USB, DUE it has worked flawlessly for over a year. To standardize equipment to allow a buddy to service the repeater if necessary I swapped out a working, preconfigured RPi 3B, ZUM radio ver 0.9 MODEM HAT and it did not work. In the process Pi-Star updated to 20191016 which I did not notice at first. I took a backup older version from 10 months ago and burned the SDCard and it worked which was version 3.4.16. Next I created a new SDCard from scratch using V4.1.0-RC4 and it worked fine with the July update. I ran the update... BOOM it stopped working.
Now not working means that the portable does not hand shake with the repeater. My Motorola SL300 never works in the failed mode but my CS750 does sometimes. However, often requiring a second or third PTT to pass traffic even though every time you get the talk permit tone. It does not matter which version old or new, after the update of the RPi I see this issue.
I will only be here for a couple more days. How can I either roll back or stop the updates until the problem can be resolved? I will be another year before I visit his site again but I do have a VPN and ssh access when not on site. Rebuilding another card remotely is not possible. This weekend when I return home I will have to see what has happened to the 5 mmdvm repeaters. I only run DMR no other modes are enabled.
What can I do?
73
Jon
K1IMD
PS - One more Hint - The Motorola SL300 does not decode audio in the failed mode but the CS750 seems too.